The population in the world’s biggest economies – from the United States and Europe to Japan and China – is ageing. Globally, in the next 30 years, the number of people aged 65 and above is expected to double from 761 million in 2021 to 1.6 billion in 2050.By then, one in every four people (PDF) in Europe and Northern America would be aged 65 or older, according to the latest United Nations population projections. Even developing economies across Asia, Latin America, the Caribbean and sub-Saharan Africa – home to the world’s youngest population – will see an increase in the share of their above-65 population, from 3 percent in 2022 to almost 5 percent in 2050.A younger population serves as the engine of economic growth by offering a large, productive workforce. However, in 2018, for the first time, people older than 65 years outnumbered those below five, pointing to a future with an increasingly dependent population.
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